From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
WikiProject Anatomy (Rated C-class, Mid-importance)
WikiProject iconThis article is within the scope of WikiProject Anatomy, a collaborative effort to improve the coverage of Anatomy on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.
Taskforce icon
This article has been classified as relating to embryology.
WikiProject Animal anatomy (Rated C-class, Mid-importance)
WikiProject iconThis article is part of WikiProject Animal anatomy, an attempt to organise a detailed guide to all topics related to animal anatomy apart from human anatomy. To participate, you can edit the attached article, or contribute further at WikiProject Animal anatomy. This project is an offshoot of WikiProject Animals
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.


I think the article overall is missing important sections describing the mesodermal layer in active organisms. Perhaps including references to articles such as this would better expand on the formation regulation of mesodermal organs. I feel like something as important is the mesodermal layer deserves more than 6 sections outlining its entire importance.

I am considering developing this page further as part of an educational assignment in Fall of 2013. If someone else is also working on this, please send me a message and let me know soon, so we donʼt duplicate initial efforts in page development. Josemags (talk) 00:24, 7 October 2013 (UTC)

The first couple of lines say when the mesoderm forms, but do not contain a definition ("The mesoderm is..."). Is it the set of cells that eventually become the muscle, blood, etc, as shown in the graphic? ( 17:36, 18 October 2007 (UTC))


Oppose merge. There is much more to say about these subjects, but it is harder for the articles njnj to expand when they are all combined. --Arcadian 18:48, 29 April 2006 (UTC)

Oppose merge. I agree with above statements.--Gmosaki 13:52, 14 May 2006 (UTC)

Oppose as well. --David Iberri (talk) 14:43, 14 May 2006 (UTC)


Isn't GI tract endoderm in origin?

Yes. --David Iberri (talk) 23:46, 7 April 2007 (UTC)
then why is it still on this page? --Sakredfire 05:45, 30 August 2007 (UTC)


Shouldn't picture description be "Section through human embryo"? Would be more informative, I guess. —Preceding unsigned comment added by (talk) 20:21, 23 November 2007 (UTC)

the mesoderm forms muscles after gastrulization has completed —Preceding unsigned comment added by (talk) 16:57, 1 February 2008 (UTC)

removed text[edit]

The following text was removed as it does NOT seem hugely relevant to the main article:

Categorizing animals[edit]

Not all triploblastic animals have a coelom, like the simplest animals with organs that form from three tissue layers: flatworms. There are three different ways in which the mesoderm is found aligned with the ectoderm and these form a method of categorizing animals into three broad groupings.

  • Acoelomates
    • no coelom
    • tissues and organs packed between gut and body wall
  • Pseudocoelomates (blastocoelomat)
    • false coelom
    • unlined or partially lined body cavity between gut and body wall
  • Coelomates
    • proper coelom
    • lined cavity between gut and body wall

Maybe it can be revised and restored? Peter morrell 09:28, 24 February 2009 (UTC)

Not restricted to humans or vertebrates[edit]

Until I edited, the article was restricted to humans or vertebrates. I've edited the first para, and it's good as far as it goes. The whole article needs a rewrite. I'm tempted, but: I have a "to do" list of invertebrate phyla; doing mesoderm properly, i.e. showing comparisons and contrasts between higher bilaterian taxa, needs more zoology than I know. --Philcha (talk) 10:26, 10 March 2011 (UTC)

I fixed the link so it goes to Germ layers, as opposed to going to Germ cell (which was incorrect). Hakeleh (talk) 19:31, 31 January 2013 (UTC)hakeleh

It's still limited to vertebrates. Mesodermal formation on protostomes are entirely omitted. Petter Bøckman (talk) 12:01, 22 May 2017 (UTC)

Problem with Definition section[edit]

This sentence is broken, but I'm not sure what it was originally supposed to say:

The paraxial mesoderm forms the somitomeres, which give rise to mesenchyme of the head and organize into somites in occipital and caudal segments. give, sclerotome (cartilage and bone), and dermatome (subcutaneous tissue of the skin).

Any ideas?Myoglobin (talk) 01:24, 14 November 2017 (UTC)